BSE and the Dynamics of Beef Consumption: Influences of Habit and Trust-疯牛病...

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英文文献：BSE and the Dynamics of Beef Consumption: Influences of Habit and Trust-疯牛病与牛肉消费动态:习惯与信任的影响
英文文献作者：Ding, Yulian,Veeman, Michele M.,Adamowicz, Wiktor L.
英文文献摘要：
This study relates habit persistence and trust to recurring food safety incidents in the context of a series of three BSE incidents in Canada. We examined the dynamics of monthly beef expenditure shares of a sample of Canadian households for monthly time periods during year 2002 through 2005 using micro level panel data which followed meat expenditures by Canadian households before and after the first three BSE cases which were discovered in 2003 and 2005. Our results suggest that households’ reactions to the first three BSE events followed a similar general pattern: households reduced beef purchase expenditures following the discovery of BSE but these expenditures subsequently recovered, suggesting that concern diminished over time. Following the first BSE event, we identified an immediate negative impact on beef expenditures. However, in the case of the second and third BSE events, this negative impact was not evident until two months after these BSE announcements. In each of the three cases, the negative impact of BSE on beef purchase expenditures was limited to no more than four months. Assessment of how habit persistence affected beef expenditures indicates that this influence limited households reductions of beef purchases following the BSE events, but the effects of habit diminished subsequent to the initial event. Regarding the role of trust in shaping households’ reactions to BSE, we found that households’ respondents whose answers to standardized questions suggest that they are not “trusting” individuals were more sensitive to the food risks identified by the BSE events.

这项研究将习惯的持久性和信任与在加拿大发生的三起疯牛病事件中反复出现的食品安全事件联系起来。我们检查每月的动态牛肉支出的股票样本的加拿大家庭每月时期在2002年到2005年使用微观面板数据随后肉加拿大家庭开支之前和之后的前三个疯牛病病例是在2003年和2005年发现的。我们的结果表明，家庭对前三次疯牛病事件的反应遵循了类似的一般模式:家庭在发现疯牛病后减少了购买牛肉的支出，但这些支出随后恢复，这表明担忧随着时间的推移而减少。在第一次疯牛病事件之后，我们确定了对牛肉支出的直接负面影响。然而，在第二次和第三次疯牛病事件中，这种负面影响直到疯牛病公告两个月后才显现出来。三例中，疯牛病对牛肉购买支出的负面影响均限制在四个月内。对习惯持久性如何影响牛肉支出的评估表明，这种影响限制了疯牛病事件后家庭减少牛肉购买，但习惯的影响在最初事件之后减弱。关于信任在家庭对疯牛病的反应中所起的作用，我们发现家庭受访者对标准化问题的回答表明，他们对疯牛病事件确定的食品风险更敏感。

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